docker

• install docker toolbox
• execute docker
  • docker pull ubuntu:latest
  • docker create ubuntu:latest
  • docker run ubuntu:latest
• docker command
  • docker image list
  • docker image rm

bitcoin

• install ubuntu (virtual box or docker)
• download source
  • git clone https://github.com/bitcoin/bitcoin.git
• download dependency library
  • sudo apt-get update
  • sudo apt-get upgrade
  • sudo apt-get install build-essential automake pkg-config libevent-dev
  • sudo apt-get install bsdmainutils
  • sudo apt-get install libtool autotools-dev autoconf
  • sudo apt-get install openssl libssl-dev
  • sudo apt-get install libboost-all-dev libboost-dev libboost-chrono-dev
  • sudo apt-get install libboost-filesystem-dev libboost-program-options-dev
  • sudo apt-get install libboost-system-dev libboost-test-dev libboost-thread-dev
  • sudo apt-get install libqrencode-dev
  • sudo apt-get install libminiupnpc-dev
  • sudo apt-get install curl git
  • sudo apt-get install g++-mingw-w64-x86-64
  • sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev
  • sudo apt-get install qttools5-dev-tools libprotobuf-dev protobuf-compiler
• bitcoin compile
  • cd bitcoin
  • cd depends
  • sudo make HOST=x86_64-w64-mingw32
  • cd ..
  • ./autogen.sh
    • if dependency error :
      • ./configure LDFLAGS="-L/home/ktds/bc/src/bitcoin/db4/lib/" CPPFLAGS="-I/home/ktds/bc/src/bitcoin/db4/include/"
  • ./configure
  • sudo make install
• install berkley db
  • sudo add-apt-repository ppa:bitcoin/bitcoin
  • sudo apt-get update
  • sudo apt-get install libdb4.8-dev
  • sudo apt-get install libdb4.8++-dev
    • if error :
      • manual install
• bitcoin start
  • bitcoind -regtest -daemon

Boostrap upgrade

• dpkg -s libboost-dev | grep 'Version'
• sudo apt-get --purge remove libboost-dev libboost-doc
• sudo apt-get --purge remove libboost-dev
• sudo apt-get --purge remove libboost-all-dev
• sudo apt autoremove
• wget https://dl.bintray.com/boostorg/release/1.68.0/source/boost_1_68_0.tar.bz2
• tar xvjf boost_1_68_0.tar.bz2
• cd boost_1_64_0
• sudo apt-get update
• sudo apt-get install build-essential g++ python-dev autotools-dev libicu-dev build-essential libbz2-dev libboost-all-dev
• ./bootstrap.sh --prefix=/usr/local
• ./b2
• sudo ./b2 install
• dpkg -s libboost-dev | grep 'Version'

go ethereum

• src
  • https://ethereum.github.io/go-ethereum/install/#build-it-from-source-code
• package
  • https://ethereum.github.io/go-ethereum/downloads
  • sudo add-apt-repository -y ppa:ethereum/ethereum
  • sudo apt-get update
  • sudo apt-get install ethereum
  • sudo apt-get update
  • sudo apt-get install ethereum-unstable
  • sudo geth
• new account
  • geth --datadir "/home/ktds/bc/git/blockchain/geth/data" account new
    • Address: {65eb093ae771c2b1c98294934e5366f9f75e8576}
• list account
  • geth --datadir "/home/ktds/bc/git/blockchain/geth/data" account list
• custom ethereum network
  • write CustomGenesis.json
  • create block
    • geth --datadir "/home/ktds/bc/git/blockchain/geth/data" init "/home/ktds/bc/git/blockchain/geth/CustomGenesis.json"
  • execute ethereum network
    • geth --identity "privateNetwork" --datadir "/home/ktds/bc/git/blockchain/geth/data" --port "30303" --rpc --rpcaddr 0.0.0.0 --rpcport "8123" --rpccorsdomain "*" --nodiscover --networkid 1900 --nat "any" --rpcapi "db, eth, net, web3, miner" console
  • eth.accounts
  • eth.getBalance(eth.accounts[0])
  • eth.getBalance(eth.coinbase)
  • eth.getBalance() //wei unit print
  • web3.fromwei(eth.getBalance(eth.coinbase), "ether") // wei => ether unit print
  • miner.start()
  • miner.stop()
  • connect
    • geth attach http://127.0.0.1:8123
• ethereum gui wallet
  • mist
  • https://github.com/ethereum/mist/releases

go

• install

  • https://golang.org/dl/
  • wget https://dl.google.com/go/go1.11.1.linux-amd64.tar.gz
  • ll go*.gz
  • sudo tar -C /usr/local -xzf go1.11.1.linux-amd64.tar.gz
  • ll /usr/local | grep go
  • sudo ln -s /usr/local/go/bin/go /usr/local/bin/go
  • sudo ln -s /usr/local/go/bin/godoc /usr/local/bin/godoc
  • sudo ln -s /usr/local/go/bin/gofmt /usr/local/bin/gofmt
  • which go
  • go version

• test

  • go run test.go
  • go build test.go
  • go env
  • set GOPATH=/home/ktds/bc/git/blockchain/go
  • GOROOT : install directory
    • GOROOT/bin : go exe file
    • GOROOT/pkg : standard package
    • GOPATH/pkg : 3rd party package
  • GOPATH : application directory
  • editor : Atom
  • web base go edit and test
    • http://play.golang.org

git

• git init

• git clone

• git config --global user.name "zoonny"

• git config --global user.email "hyungii@naver.com"

• git config --global user.name "zoonny"

• echo "# blockchain" >> README.md

• git add README.md

• git commit -m 'first commit'

• git remote add origin https://github.com/zoonny/blockchain.git

• git push -u origin master

• git remote -v

• git remote add [repository_name] [url].git

• git remote remove [repository_name]

• git remote set-url [repository_name] [url].git

• git status

• git add .

• git commit -m 'commit'

• git push origin master

• git pull origin master

virtualbox

• port forward
  • ubuntu ifconfig : 10.0.2.15
  • windows ipconfig : 192.168.56.1 or 192.168.99.1
  • host ip : windows ip
  • guest ip : ubuntu ip
  • port : 4200

google cloud platform

• google cloud sdk
  • https://cloud.google.com/sdk/docs/downloads-apt-get
  • .bash_profile
    • export CLOUD_SDK_REPO="cloud-sdk-$(lsb_release -c -s)"
  • add package source
    • echo "deb http://packages.cloud.google.com/apt $CLOUD_SDK_REPO main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
  • google cloud public key
    • curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
  • install
    • sudo apt-get update && sudo apt-get install google-cloud-sdk
  • install additional
    • sudo apt-get install google-cloud-sdk-app-engine-java
  • init
    • gcloud init
• ssh
  • generate key pair
    • ssh-keygen -t rsa -C "juhyung.yoon@gmail.com"
    • input direcotry
    • no password
    • id_rsa, id_rsa.pub
  • google cloud console
    • Compute Engine > Metadata > SSH Keys
    • copy id_rsa.pub
  • connect ssh
    • ssh -i .ssh/id_rsa juhyung.yoon@35.200.21.229

curl

• basic
  • reference
    • http://www.neuromancer.kr/t/curl/120
  • get page
    • curl http://www.kernel.org
    • curl https://github.com/zoonny/blockchain
    • curl https://github.com/zoonny/blockchain/blob/master/README.md
  • save file
    • curl -o readmefile https://github.com/zoonny/blockchain/blob/master/README.md
    • curl -O https://github.com/zoonny/blockchain/blob/master/README.md
  • send post -d
    • application/x-www-form-urlencoded type
    • -d KEY=VALUE
    • curl -d name=hyung -d sex=male http://www.kernel.org
  • curl -I: get header information
    • curl -I http://www.google.com
    • 'curl -I' is check redirect. if 301 redirect, abc.kr => xyz.kr change.
  • [???] curl -u: move server authentication page
    • curl -u hyungii:qwer1234 https://www.google.com
  • [???] curl -u: get file from SMB Server
    • curl -u "domain/username:passwd" smb://server.example.com/share/file.txt
• • curl -k: skip certification error
    • curl -k https://www.example.com k - curl -v: print send and receive information to server
    • curl -v http://www.kernel.org
  • curl -T: upload ftp file
    • curl -T banner.jpg -u username:password ftp://ftp.example.com/img/
    • curl -T banner.jpg -u ftp://username:password@ftp.example.com/img/
  • curl FTP_URL: search directory in ftp site
    • curl ftp://username:password@example.com
• advanced
  • reference
    • https://www.lesstif.com/pages/viewpage.action?pageId=14745703
  • description
    • support protocol
      • HTTP/HTTPS/FTP/LDAP/SCP(Secure Copy Protocol)/TELNET/SMTP/POP3
    • support libcurl
      • C/C++ and PHP, ruby, PERL binding
    • major options
      • -k --insecure: connect to https site that no verify
      • -I --head: show only http header
      • -D --dump-header: save file to HTTP header
      • -L --location: if response 301 or 302, go to redirection URL, --max-redirs [number], default 50
      • -d --data: HTTP post data (form or json)
      • -v --verbose: print send and receive option
      • [???] -J --remote-header-name: header save file name, curl 7.20+
      • -o --output: save file
      • -O --remote-name: save file to remote-file-name
      • -s --silent: no print